Portable computer



FIG. 1 is a front, top and right side elevational perspective view of a portable computer showing our new design, the computer being in the open position;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front elevational view of the computer in the closed position;

FIG. 9 is a right side elevational view thereof;

FIG. 10 is a top plan view thereof; and

FIG. 11 is a front, top and right side elevational perspective view of the computer being in the open position, with the keyboard shown removed from the base; 

The ornamental design for a portable computer, as shown and described. 